( 552 ) 



The variabilit)' in size is not inconsiderable, the forewing measuring from 

 34 to 46 mm. in length in onr males, and from 35 to 50 mm. in onr females. 

 The clondy sj)ot in front of the .snbcostal fork of the forcwing assumes sometimes 

 a distinct blue tint ; the black dot within the fork is occasionally very small, 

 rarely absent ; the yellow cell-bar varies much in size, being vestigial in one of our 

 numerous specimens from Mount Shasta, a male, the posterior discal patches being 

 in this individual also rather smaller than usual. The amount of black at the 

 base and behind the cell of the hindwing is variable ; tlie yellow colour extends 

 usually to the base of the cell, but the basal fourth or third of the cell is sometimes 

 black ; the width of the black distal border is quite inconstant. The cell of the 

 forewing is, in some individuals, distinctly striped with pale yellow; some specimens 

 have hardly any orange colour on the disc of the hindwing, while others bear 

 conspicuous orange patches. Deep yellow individuals are ab. coloro Wright. 



For early stages see Edwards, l.i'. 



Hah. Alaska, British Columbia, Alberta, southwards to Arizona and Colorado. 



In the Triug Museum 95 iS, 27 ? ?, from: Qu'Apjielle, Assiniboia, June 

 19U1 ; Ozoyoos, British Columbia (Reynolds) ; Gold Hill, Oregon, May — July 1901 

 (Biedermann) ; Quincy, California, 3400 ft., May 1890 (Watson); Trucky, California, 

 6000 ft. ; McCloud E., Shasta Co., June 1884 (0. T. Baron) ; Butte Creek, 

 Butte Co., May 1898 (Mrs. Austin) ; Davis Creek, Madoc Co., 4500 ft., July 1898 

 (Mrs. Austin); N. Tulare R, California, July 1897 (Purpus); Siskiyou Co., 

 California (0. T. Baron) ; Reno, Nevada ; Chimney Gulch, Colorado, May 1901 

 (Oslar) ; Garfield Co. and Park Co., Colorado. 



In coll. H. J. Adams from Calgary. 



64. Papilio indra Reak. (1867). 

 ? . Papilio indra Reakirt, Proc. Ent. Soc. Philad. vi. p. 123 (1867) (Colorado, Pike's Peak). 



S ? . Sexes similar. Body black ; a line bordering the mesothoracic tegula 

 and extending forward, ending behind antennae, creamy, often somewhat 

 ochraceous ; abdomen either wholly black, or the last segments laterally creamy, 

 or there is a creamy stripe of variable width from base of abdomen to claspers, 

 the stripe being situated laterally on the tergites, the claspers remaining always 

 black. 



The colour of the creamy markings of the wings darkens by e.^posure to 

 light, as in other pale yellow species. 



Forewing. There are usually two creamy bars across the cell, either of 



which or both may be wanting ; the discal band is very variable in width, the 

 submarginal spots also varying much in size ; in fresh specimens the basal third 

 of the wing is powdered with creamy scales. The discal band of the hindwing 

 stands either outside the cell, being narrow, or enters the cell, occupying sometimes 

 as much as the apical third of the cell ; the submarginal spot M' — M- is often 

 absent ; the anal orange spot (submarginal and marginal spots M' — SM- merged 

 together) is always centred with black ; the orange ring is usually complete, but 

 in a small percentage of specimens it is interrupted on the abdominal side, being 

 occasionally open also on the discal side, in which case the orange submarginal sjiot 

 stands separate from the marginal one like the other submarginal spots ; the 

 discal spot R^— M' is acuminate, often also the spot in front of it, both being 

 somewhat prolonged on the underside, and in many specimens stained with orange 

 distally. 



